Sable V6-3.0L VIN U (1999)
Power Steering Pump: Component Tests and General Diagnostics
Prechecks
Before performing pump flow and pressure test, complete the following checks for conditions which could cause loss of power assist. Take corrective
action if necessary.
1. Check power steering oil reservoir for proper fluid level.
2. Check tires for correct air pressure.
3. Check drive belt for proper tension.
4. Check power steering pump for correct model and vehicle application.
5. Check for correct size power steering pump pulleys on power steering pump and engine.
6. Check entire system for damage. Replace parts, if necessary.
If the above items are correct or have been corrected and the loss of assist still exists, test power steering pump flow and pressure to determine
whether the trouble is in the power steering pump, power rack and pinion steering gear or hoses.
Procedure
Pump Flow And Pressure Testing - 3.0L (2V), Flex Fuel Engine
